package com.atguigu.gulimall.product.service.impl;

import com.atguigu.common.utils.PageUtils;
import com.atguigu.common.utils.Query;
import com.atguigu.gulimall.product.dao.AttrGroupDao;
import com.atguigu.gulimall.product.entity.AttrEntity;
import com.atguigu.gulimall.product.entity.AttrGroupEntity;
import com.atguigu.gulimall.product.service.AttrGroupService;
import com.atguigu.gulimall.product.service.AttrService;
import com.atguigu.gulimall.product.vo.AttrGroupWithAttrVo;
import com.atguigu.gulimall.product.vo.SpuItemAttrGroupVo;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.StringUtils;

import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;


@Service("attrGroupService")
public class AttrGroupServiceImpl extends ServiceImpl<AttrGroupDao, AttrGroupEntity> implements AttrGroupService {
    @Autowired
    private AttrService attrService;

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<AttrGroupEntity> page = this.page(
                new Query<AttrGroupEntity>().getPage(params),
                new QueryWrapper<AttrGroupEntity>()
        );

        return new PageUtils(page);
    }

    @Override
    public PageUtils queryPage(Map<String, Object> params, Long catelogId) {
        //查询条件
        //select * from `pms_attr_group` catelog_id=？ and (attr_group_id=key or attr_group_name like %key%)
        //模糊搜索
        String key = (String) params.get("key");
        QueryWrapper<AttrGroupEntity> wrapper = new QueryWrapper<AttrGroupEntity>();
        //输入了查询条件
        if (!StringUtils.isEmpty(key)) {
            wrapper.and(obj -> obj.eq("attr_group_id", key).or().like("attr_group_name", key));
        }

        if (catelogId == 0) {
            IPage<AttrGroupEntity> page = this.page(new Query<AttrGroupEntity>().getPage(params),
                    wrapper);
            return new PageUtils(page);
        } else {
            wrapper.eq("catelog_id", catelogId);
            IPage<AttrGroupEntity> page = this.page(new Query<AttrGroupEntity>().getPage(params),
                    wrapper);
            return new PageUtils(page);
        }
    }
    /**
     * 根据分类id查出所有分组以及这些分组里面的属性
     */
    @Override
    public List<AttrGroupWithAttrVo> getAttrGroupWithAttrsByCatelogId(Long catelogId) {
        //1、查询分组信息
        List<AttrGroupEntity> attrGroupEntities = this.list(new QueryWrapper<AttrGroupEntity>().eq("catelog_id", catelogId));
        //2、查询所有属性
        List<AttrGroupWithAttrVo> collect = attrGroupEntities.stream().map(group -> {
            AttrGroupWithAttrVo attrVo = new AttrGroupWithAttrVo();
            //分组属性拷贝
            BeanUtils.copyProperties(group,attrVo);
            //获取分组的关联的属性
            List<AttrEntity> attrs = attrService.getRelationAttr(attrVo.getAttrGroupId());
            attrVo.setAttrs(attrs);
            return attrVo;
        }).collect(Collectors.toList());
        return collect;
    }

    @Override
    public List<SpuItemAttrGroupVo> getAttrGroupWithAttrsBySpuId(Long spuId, Long catalogId) {
        //1、查出当前Spu对应的所有属性分组的信息，以及当前分组下的所有属性对应的值
        AttrGroupDao baseMapper = this.baseMapper;
        List<SpuItemAttrGroupVo> vos= baseMapper.getAttrGroupWithAttrsBySpuId(spuId, catalogId);
        return vos;
    }

}